Methanol, HPLC Gradient Grade Methanol Reagents, Solvents
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Product Name
Methanol, HPLC Gradient Grade Methanol Reagents, Solvents
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Specifications
- Purity: Gradient grade, assay ≥99.90% (GC)
- IUPAC Name: methanol
- EC Number: 200-659-6
- Molecular Weight: 32.042
- Chemical Formula: CH4O
- CAS Number: 67-56-1
- Certification Standard: ChP (Chinese Pharmacopoeia) compliant
- Application: HPLC mobile-phase solvent (gradient grade)
- Test Items: Specification
- Assay CH3OH (by GC) , ω / %: 99.90 min
- Density (20℃) , ρ / (g/mL): 0.791~0.793
- Chromaticity (APHA): 10 max
- Solubility in H2O: Pass test
- Residue on evaporation , ω / %: 0.0002 max
- Water H2O (by K-F) , ω / %: 0.02 max
- Titrable Acid(H+) , b / (mmol/g): 0.0002 max
- Titrable Base(OH-) , b / (mmol/g): 0.00008 max
- UV Absorbance(1cm cell vs. water): at 205 nm
- at 210 nm: 0.50 max
- at 220 nm: 0.22 max
- at 230 nm: 0.12 max
- at 240 nm: 0.05 max
- at 250 nm: 0.02 max
- at 260-400 nm: 0.01 max
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